Art,
I always try to to do nice clean installs.
Some of my tricks (Or retentive habits), and good practice for strong joints:
-Use a razor or fine sandpaper to scrape the lettering off of the pipe. Or, where it will be only viewed from one side, turn it so the letters are facing the back. Yes I'm THAT picky
- NEVER use purple primer (ugly), but ALWAYS use clear primer on both pipe and fitting. The joint is much stronger.
- Always bevel the cut ends of the pipe. Inside to deburr, and outside so when inserting the pipe it does not scrape all the glue away. It does make a stronger joint.
- Dont be stingy with the (clear
) glue. I goop it, then wipe off the squeeze out, leaving a fillet around the joint with my finger (like when siliconing).
- Always insert the pipe fully, and rotate into position. Then hold it till it sticks. The things will try to separate due to the fittings tapered socket.
- Support the pipe and fittings, espescially with long runs or where it can be bumped into. Also support plumbing where connected to skimmers, etc. You dont want any torque on equipment fittings. The grey Carlon electrical conduit hangers at Home Depot work fine. You can also buy all plastic plumbers strap that you simply wrap around the pipe and screw to the stand, wall, etc.
- Use a heat gun on Spa flex to get it pointing where you want it. The stuff is springy enough to break some fittings. Dont heat it where it will be glued, it'll distort and not glue well.
- Dont use cheap ball valves. They all leak over time, or simply get too hard to turn.
- Threaded fittings are not worth the effort to try and save fittings for reuse. PVC is too cheap to try and plan that far ahead. BUT I always will put a threaded fitting on a piece of equipment that only has a socket fitting. Like on a chiller- you definately will be replumbing at some point. Or at least leave a little pipe before puting on a fitting, so you have something to glue to later if you have to cut it.
- Use LOTS of unions (and ballvalves where needed) for line inspection, equipment maintenance, etc.
Oh, and use dropcloths- pvc glue can ruin floors, paint, etc quickly. And dont forget to ventilate!
Some of this is common sense, and I'm probably not telling you anything new. Just a good overview and what I try to do.
FWIW,
Chris